Planetary hours
in Biskra.
The day, from sunrise to sunset, is cut into twelve equal hours; so is the night, from sunset to the next sunrise. Each hour carries a planet, in the Chaldean order. A planetary hour therefore lasts 60 minutes only at the equinoxes: it all depends on the date and the city. Here are the exact hours for your city; what you do with them is up to you.
Planetary day of Wednesday, 16 December 2026: day of Mercury
- Sunrise
- 07:37
- Sunset
- 17:27
- Next sunrise
- 07:38
A day hour lasts 49 min; a night hour, 1h 11m. Local time (Africa/Algiers).
Day
- 1☿︎ Mercury07:37 – 08:26
- 2☽︎ Moon08:26 – 09:16
- 3♄︎ Saturn09:16 – 10:05
- 4♃︎ Jupiter10:05 – 10:54
- 5♂︎ Mars10:54 – 11:43
- 6☉︎ Sun11:43 – 12:32
- 7♀︎ Venus12:32 – 13:21
- 8☿︎ Mercury13:21 – 14:10
- 9☽︎ Moon14:10 – 15:00
- 10♄︎ Saturn15:00 – 15:49
- 11♃︎ Jupiter15:49 – 16:38
- 12♂︎ Mars16:38 – 17:27
Night
- 1☉︎ Sun17:27 – 18:38
- 2♀︎ Venus18:38 – 19:49
- 3☿︎ Mercury19:49 – 21:00
- 4☽︎ Moon21:00 – 22:11
- 5♄︎ Saturn22:11 – 23:22
- 6♃︎ Jupiter23:22 – 00:32
- 7♂︎ Mars00:32 – 01:43
- 8☉︎ Sun01:43 – 02:54
- 9♀︎ Venus02:54 – 04:05
- 10☿︎ Mercury04:05 – 05:16
- 11☽︎ Moon05:16 – 06:27
- 12♄︎ Saturn06:27 – 07:38
Other cities · Algeria
Questions
How are the planetary hours calculated in Biskra?
On Wednesday, 16 December 2026, the Sun rises at 07:37 and sets at 17:27: the day lasts 9h 50m, that is twelve day hours of 49 min. The night, until the next sunrise at 07:38, lasts 14h 11m: twelve night hours of 1h 11m.
Which planet rules the first hour that day?
Mercury, from 07:37 to 08:26: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury again.
Today’s sky, on YOUR chart
Planetary hours are the same for everyone in a city. Your chart is yours alone: every morning AstroXP crosses the real sky with your birth, to the minute, and tells you what time it plays out for you.
On a computer? Scan this code with your phone.
Calendars
Sunrise and sunset calculated for the city (the Sun’s centre 0°50′ below the horizon: refraction and semi-diameter), local time of the city’s time zone. Checked against astronomy-engine, the app’s engine.